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authorThomas Petazzoni <thomas.petazzoni@free-electrons.com>2014-06-11 14:06:37 +0200
committerJason Cooper <jason@lakedaemon.net>2014-06-20 20:38:14 +0000
commit52fcc56753de91ae337aeaa0a664f72d93f19827 (patch)
treec26fcf7398eeb2f3fca34a9fb8825e2b12f30057 /arch
parented2d859119f9cb04410d94b5fbd2bb12907c8932 (diff)
ARM: mvebu: select ARM_CPU_SUSPEND for Marvell EBU v7 platforms
On Marvell Armada platforms, the PMSU (Power Management Service Unit) controls a number of power management related activities, needed for things like suspend/resume, CPU hotplug, cpuidle or even simply SMP. Since cpuidle support was added for Armada XP, the pmsu.c file in arch/arm/mach-mvebu/ calls the cpu_suspend() and cpu_resume() ARM functions, which are only available when CONFIG_ARM_CPU_SUSPEND=y. Therefore, configurations that have CONFIG_ARM_CPU_SUSPEND disabled due to PM_SLEEP being disabled no longer build properly, due to undefined references to cpu_suspend() and cpu_resume(). To fix this, this patch simply ensures CONFIG_ARM_CPU_SUSPEND is always enabled for Marvell EBU v7 platforms. Doing things in a more fine-grained way would require a lot of #ifdef-ery in pmsu.c to isolate the parts that use cpu_suspend()/cpu_resume(), and those parts would anyway have been needed as soon as either one of suspend/resume, CPU hotplug or cpuidle was enabled. Reported-by: Ezequiel Garcia <ezequiel.garcia@free-electrons.com> Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com> Link: https://lkml.kernel.org/r/1402488397-31381-1-git-send-email-thomas.petazzoni@free-electrons.com Acked-by: Ezequiel Garcia <ezequiel.garcia@free-electrons.com> Signed-off-by: Jason Cooper <jason@lakedaemon.net>
Diffstat (limited to 'arch')
-rw-r--r--arch/arm/mach-mvebu/Kconfig1
1 files changed, 1 insertions, 0 deletions
diff --git a/arch/arm/mach-mvebu/Kconfig b/arch/arm/mach-mvebu/Kconfig
index 61ac80a8acac..ea039ed7a3ae 100644
--- a/arch/arm/mach-mvebu/Kconfig
+++ b/arch/arm/mach-mvebu/Kconfig
@@ -20,6 +20,7 @@ config MACH_MVEBU_V7
bool
select ARMADA_370_XP_TIMER
select CACHE_L2X0
+ select ARM_CPU_SUSPEND
config MACH_ARMADA_370
bool "Marvell Armada 370 boards" if ARCH_MULTI_V7